@import"https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap";:root{color-scheme:dark;--bg: #1a1a1a;--bg-soft: #202123;--surface: #2f2f2f;--surface-elevated: #343541;--surface-sidebar: #171717;--border: #3a3a3a;--text: #ececec;--muted: #a8a8a8;--accent: #10a37f;--accent-strong: #0e8d6f;--danger: #f87171;--danger-soft: rgba(248, 113, 113, .12);--focus: 0 0 0 2px rgba(16, 163, 127, .28), 0 0 0 4px rgba(16, 163, 127, .48);--radius-sm: 10px;--radius-md: 14px;--radius-lg: 18px;--radius-xl: 22px;--shadow: 0 20px 56px rgba(0, 0, 0, .35);--transition: .18s ease}[data-theme=light]{color-scheme:light;--bg: #f4f7fb;--bg-soft: #eef2f8;--surface: #ffffff;--surface-elevated: #f8fafc;--surface-sidebar: #e9eef6;--border: #d7e0ea;--text: #0f172a;--muted: #4b5563;--accent: #0f766e;--accent-strong: #0a5f58;--danger: #dc2626;--danger-soft: rgba(220, 38, 38, .09);--focus: 0 0 0 2px rgba(15, 118, 110, .25), 0 0 0 4px rgba(15, 118, 110, .45);--shadow: 0 18px 48px rgba(15, 23, 42, .12)}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:Plus Jakarta Sans,sans-serif;color:var(--text);background:radial-gradient(circle at 100% 0%,rgba(16,163,127,.08),transparent 35%),var(--bg);transition:background-color var(--transition),color var(--transition)}.app-shell{min-height:100%;padding:12px}.app-card{width:min(1440px,100%);height:calc(100vh - 24px);margin:0 auto;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-xl);box-shadow:var(--shadow);display:flex;flex-direction:column;overflow:hidden}.app-header{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px 18px;border-bottom:1px solid var(--border);background:color-mix(in srgb,var(--surface) 82%,var(--bg-soft))}.app-header h1{margin:0;font-size:clamp(1.2rem,2vw,1.45rem);line-height:1.15}.eyebrow{margin:0 0 4px;font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:700}.subtext{margin:2px 0 0;color:var(--muted);font-size:.88rem}.header-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:flex-end}.new-chat-button,.composer-button,.auth-toggle-button,.theme-button,.session-delete-button{font:inherit;border-radius:999px;border:1px solid var(--border);background:var(--surface-elevated);color:var(--text);min-height:40px;padding:0 14px;cursor:pointer;transition:transform var(--transition),background-color var(--transition),border-color var(--transition),box-shadow var(--transition)}.new-chat-button:hover:not(:disabled),.composer-button:hover:not(:disabled),.auth-toggle-button:hover,.theme-button:hover,.session-delete-button:hover:not(:disabled){transform:translateY(-1px);border-color:color-mix(in srgb,var(--accent) 40%,var(--border))}.new-chat-button:focus-visible,.composer-button:focus-visible,.auth-toggle-button:focus-visible,.theme-button:focus-visible,.session-delete-button:focus-visible,.composer-input:focus-visible,.session-item-main:focus-visible{outline:none;box-shadow:var(--focus)}.new-chat-button{background:color-mix(in srgb,var(--surface-elevated) 70%,var(--bg))}.new-chat-button.secondary{border-color:color-mix(in srgb,var(--danger) 26%,var(--border));color:var(--danger)}.theme-switch{display:inline-flex;gap:6px;padding:4px;border-radius:999px;border:1px solid var(--border);background:color-mix(in srgb,var(--surface-elevated) 70%,var(--bg-soft))}.theme-button{min-height:32px;padding:0 12px;border:1px solid transparent;background:transparent;color:var(--muted);font-weight:700}.theme-button.active{background:var(--surface);color:var(--text);border-color:var(--border)}.status-pill{display:inline-flex;align-items:center;min-height:36px;padding:0 12px;border-radius:999px;background:color-mix(in srgb,var(--accent) 18%,transparent);color:color-mix(in srgb,var(--accent) 85%,white 15%);border:1px solid color-mix(in srgb,var(--accent) 35%,var(--border));font-size:.82rem;font-weight:700}.chat-layout{flex:1;min-height:0;display:grid;grid-template-columns:290px minmax(0,1fr)}.session-sidebar{background:var(--surface-sidebar);border-right:1px solid var(--border);padding:12px;overflow:auto}.profile-card{display:flex;align-items:center;gap:12px;padding:12px;border:1px solid var(--border);border-radius:var(--radius-md);background:color-mix(in srgb,var(--surface-sidebar) 75%,var(--surface) 25%);margin-bottom:14px}.profile-avatar{width:42px;height:42px;border-radius:12px;color:#fff;display:grid;place-items:center;font-weight:800;font-size:1rem}.profile-meta{min-width:0}.profile-name{font-weight:700;font-size:.92rem}.profile-username{margin-top:2px;color:var(--muted);font-size:.8rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.session-sidebar-header{margin-bottom:8px;color:var(--muted);font-size:.74rem;text-transform:uppercase;letter-spacing:.08em;font-weight:700}.session-list{display:flex;flex-direction:column;gap:8px}.session-empty{color:var(--muted);padding:12px;border:1px dashed var(--border);border-radius:var(--radius-sm);font-size:.86rem}.session-item{border:1px solid transparent;border-radius:12px;padding:8px;background:transparent;transition:background-color var(--transition),border-color var(--transition)}.session-item:hover{background:color-mix(in srgb,var(--surface-sidebar) 45%,var(--surface));border-color:var(--border)}.session-item.active{background:color-mix(in srgb,var(--accent) 16%,var(--surface-sidebar));border-color:color-mix(in srgb,var(--accent) 40%,var(--border))}.session-item-main{width:100%;border:none;padding:2px;text-align:left;background:transparent;color:inherit;cursor:pointer;display:flex;flex-direction:column;gap:2px;border-radius:8px}.session-title{font-size:.9rem;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.session-meta{color:var(--muted);font-size:.74rem}.session-delete-button{margin-top:7px;min-height:30px;padding:0 10px;border-color:color-mix(in srgb,var(--danger) 45%,var(--border));color:var(--danger);background:var(--danger-soft);font-size:.75rem;font-weight:700}.chat-panel{min-height:0;overflow:auto;padding:20px clamp(14px,4vw,48px);background:color-mix(in srgb,var(--surface) 88%,var(--bg-soft))}.empty-state{width:min(760px,100%);margin:20px auto;padding:24px;border-radius:var(--radius-lg);border:1px dashed var(--border);background:color-mix(in srgb,var(--surface-elevated) 65%,var(--surface))}.empty-state h2{margin:0 0 8px}.empty-state p{margin:0;color:var(--muted)}.message-row{width:min(760px,100%);margin:0 auto 16px;display:flex}.message-row.user{justify-content:flex-end}.message-row.assistant{justify-content:flex-start}.message-bubble{max-width:min(88%,74ch);border-radius:var(--radius-lg);border:1px solid var(--border);padding:12px 14px}.message-bubble.assistant{background:color-mix(in srgb,var(--surface-elevated) 76%,var(--surface))}.message-bubble.user{background:color-mix(in srgb,var(--accent) 26%,var(--surface-elevated));border-color:color-mix(in srgb,var(--accent) 40%,var(--border))}.message-role{margin-bottom:6px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;font-size:.68rem;font-weight:800}.message-text{white-space:pre-wrap;word-break:break-word;line-height:1.7;font-size:.95rem}.composer{border-top:1px solid var(--border);padding:14px 18px;display:grid;grid-template-columns:1fr auto;gap:10px;background:color-mix(in srgb,var(--surface) 82%,var(--bg-soft))}.composer-input{width:100%;min-height:44px;border-radius:14px;border:1px solid var(--border);background:color-mix(in srgb,var(--surface-elevated) 84%,var(--surface));color:var(--text);font:inherit;padding:0 14px}.composer-input::placeholder{color:color-mix(in srgb,var(--muted) 86%,transparent)}.composer-button{min-width:104px;border-color:color-mix(in srgb,var(--accent) 50%,var(--border));background:var(--accent);color:#fff;font-weight:800}.composer-button:hover:not(:disabled){background:var(--accent-strong)}.composer-button:disabled,.new-chat-button:disabled{opacity:.6;cursor:not-allowed}.status-message{margin:10px 16px 0;border-radius:12px;border:1px solid color-mix(in srgb,var(--accent) 35%,var(--border));background:color-mix(in srgb,var(--accent) 18%,transparent);color:var(--text);padding:10px 12px;font-size:.88rem}.status-message.error{border-color:color-mix(in srgb,var(--danger) 45%,var(--border));background:var(--danger-soft)}.auth-shell{display:grid;place-items:center}.auth-panel{width:min(560px,100%);border-radius:var(--radius-xl);border:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow);padding:22px;display:flex;flex-direction:column;gap:14px}.auth-brand h1{margin:0;font-size:clamp(1.6rem,3.3vw,2.3rem)}.auth-form{display:flex;flex-direction:column;gap:10px}.auth-form label{display:flex;flex-direction:column;gap:5px;color:var(--muted);font-size:.86rem;font-weight:600}.auth-toggle{display:inline-flex;align-self:flex-start;padding:4px;gap:6px;border-radius:999px;border:1px solid var(--border);background:color-mix(in srgb,var(--surface-elevated) 75%,var(--bg-soft))}.auth-toggle-button{min-height:34px;border:1px solid transparent;background:transparent;color:var(--muted);font-weight:700}.auth-toggle-button.active{border-color:var(--border);background:var(--surface);color:var(--text)}.auth-textarea{min-height:90px;padding:10px 12px;resize:vertical}.auth-submit{margin-top:6px}.loading{opacity:.7;animation:pulse 1.2s ease-in-out infinite}@keyframes pulse{0%,to{opacity:.7}50%{opacity:1}}@media (max-width: 980px){.app-card{height:calc(100vh - 16px)}.chat-layout{grid-template-columns:250px minmax(0,1fr)}.status-pill{width:100%;justify-content:center}}@media (max-width: 760px){.app-shell{padding:0}.app-card{width:100%;height:100vh;border-radius:0;border:none}.app-header{align-items:flex-start;flex-direction:column}.header-actions{width:100%;justify-content:flex-start}.chat-layout{grid-template-columns:1fr}.session-sidebar{border-right:none;border-bottom:1px solid var(--border);max-height:240px}.composer{grid-template-columns:1fr}.composer-button,.new-chat-button{width:100%}}